Robert Toth, President and CEO, and Lynn Amos, Chief Financial Officer, will host a conference call to review and discuss those results beginning at 9:00 am Eastern time on Thursday, February 24, 2011. The dial-in number for the conference call is (719) 457-2713. Enter code 5346816. A replay of the conference call will be available through Thursday, March 3, 2011 via telephone at (719) 457-0820. Enter code 5346816.

The call will be webcast live and archived for 30 days in the Investor Relations section of the company's web site at http://investor.polypore.net/.

About Polypore International, Inc.

Polypore International, Inc. is a global high technology filtration company specializing in microporous membranes. Polypore's flat sheet and hollow fiber membranes are used in specialized applications that require the removal or separation of various materials from liquids, primarily in the ultrafiltration and microfiltration markets. Based in Charlotte, NC, Polypore International, Inc. is a market leader with manufacturing facilities or sales offices in ten countries serving six continents. See www.polypore.net.